Oatey 71980 ABS Plastic Roof Drain Dome, Black Available in black cast iron or UV-stable ABS. Designed for use in finished areas with moderate to heavy traffic and where wastewater contains debris PVC drains comply with ASTM D2665 ABS drains comply with ASTM D2661 Drain bases available to fit: Over 2-Inch ABS/PVC pipe, over 3-Inch ABS/PVC pipe, over 4-Inch ABS/PVC pipe, over 6-Inch ABS/PVC pipe